diff --git a/NumericalData/CDPP-AMDA/GEOTAIL/EFD/gtl-efd-edb.xml b/NumericalData/CDPP-AMDA/GEOTAIL/EFD/gtl-efd-edb.xml
index 3ba1192..5e9ea58 100644
--- a/NumericalData/CDPP-AMDA/GEOTAIL/EFD/gtl-efd-edb.xml
+++ b/NumericalData/CDPP-AMDA/GEOTAIL/EFD/gtl-efd-edb.xml
@@ -78,7 +78,7 @@
         <Parameter>
             <Name>s/c potential</Name>
             <ParameterKey>gtl_e_edb_pot</ParameterKey>
-            <Description></Description>
+            <Description>spacecraft potential</Description>
             <Units>V</Units>
             <RenderingHints>
                 <DisplayType>TimeSeries</DisplayType>
--
libgit2 0.21.2